package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@Api(tags = "菜品相关接口")
@Slf4j
@RequestMapping("/admin/dish")
@RestController
public class DishController {
    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 新增菜品
     * @param dishDTO
     * @return
     */
    @ApiOperation("新增菜品")
    @PostMapping
    public Result save(@RequestBody DishDTO dishDTO){
        log.info("新增菜品: dishDTO = {}", dishDTO);
        dishService.saveWithFlavor(dishDTO);
        //清理缓存   建议根据分类id清理缓存
        cleanCache("dish_"+dishDTO.getCategoryId());
        return Result.success();
    }

    /**
     * 分页查询
     * @param dishPageQueryDTO
     * @return
     */
    @ApiOperation("分页查询")
    @GetMapping("/page")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
        log.info("分页查询: {}", dishPageQueryDTO);
        PageResult pageResult = dishService.page(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /**
     * 菜品删除(批量)
     * @param ids
     * @return
     */
    @ApiOperation("菜品删除(批量)")
    @DeleteMapping
    public Result delete(@RequestParam List<Long> ids){
        log.info("菜品删除(批量): {}", ids);
        dishService.delete(ids);
        //清理缓存   建议暴力清除全部分类下的菜品缓存
        cleanCache("dish_*");
        return Result.success();
    }

    /**
     * 根据id查询菜品
     * @param id
     * @return
     */
    @ApiOperation("根据id查询菜品")
    @GetMapping("/{id}")
    public Result<DishVO> getById(@PathVariable Long id){
        log.info("根据id查询菜品: id={}", id);
        DishVO dishVO = dishService.getById(id);
        return Result.success(dishVO);
    }

    /**
     * 修改菜品
     * @param dishDTO
     * @return
     */
    @ApiOperation("修改菜品")
    @PutMapping
    public Result update(@RequestBody DishDTO dishDTO){
        log.info("修改菜品: dishDTO={}", dishDTO);
        dishService.updateWithFlavor(dishDTO);
        //缓存优化：清理缓存
        ValueOperations valueOperations = redisTemplate.opsForValue();
        //修改菜品: 可能修改了分类，简单粗暴处理，全部删除所有的dish_菜品缓存
        cleanCache("dish_*");
        return Result.success();
    }

    /**
     * 菜品起售、停售
     * @param status 菜品状态：1为起售，0为停售
     * @param id
     * @return
     */
    @PostMapping("/status/{status}")
    public Result enableOrDisable(@PathVariable Integer status, Long id){
        log.info("菜品起售、停售: status={}, id={}", status, id);
        dishService.enableOrDisable(status, id);
        //清理缓存   根据分类id清理缓存|暴力清除
        cleanCache("dish_*");
        return Result.success();
    }

    /**
     * 根据分类id查询菜品列表
     * @param categoryId
     * @return
     */
    @ApiOperation("根据分类id查询菜品列表")
    @GetMapping("/list")
    public Result getByCategoryId(Long categoryId, String name){
        log.info("根据分类id查询菜品列表: categoryId = {}, name = {}", categoryId, name);
        List<Dish> list = dishService.getByCategoryId(categoryId, name);
        return Result.success(list);
    }

    //清理缓存
    private void cleanCache(String pattern) {
        Set keys = redisTemplate.keys(pattern);
        redisTemplate.delete(keys);
    }
}
